arch/um/sys-x86/shared/sysdep/sigcontext_32.h

   1 /*
   2  * Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
   3  * Licensed under the GPL
   4  */
   5
   6 #ifndef __SYS_SIGCONTEXT_I386_H
   7 #define __SYS_SIGCONTEXT_I386_H
   8
   9 #include <generated/user_constants.h>
  10
  11 #define SC_OFFSET(sc, field) \
  12         *((unsigned long *) &(((char *) (sc))[HOST_##field]))
  13
  14 #define SC_TRAPNO(sc) SC_OFFSET(sc, SC_TRAPNO)
  15 #define SC_ERR(sc) SC_OFFSET(sc, SC_ERR)
  16 #define SC_CR2(sc) SC_OFFSET(sc, SC_CR2)
  17
  18 #define GET_FAULTINFO_FROM_SC(fi, sc) \
  19         { \
  20                 (fi).cr2 = SC_CR2(sc); \
  21                 (fi).error_code = SC_ERR(sc); \
  22                 (fi).trap_no = SC_TRAPNO(sc); \
  23         }
  24
  25 #define GET_FAULTINFO_FROM_MC(fi, mc) \
  26         { \
  27                 (fi).cr2 = (mc)->cr2; \
  28                 (fi).error_code = (mc)->gregs[REG_ERR]; \
  29                 (fi).trap_no = (mc)->gregs[REG_TRAPNO]; \
  30         }
  31
  32 #endif